{"api_version":"1","generated_at":"2026-05-13T07:40:45+00:00","cve":"CVE-2026-43422","urls":{"html":"https://cve.report/CVE-2026-43422","api":"https://cve.report/api/cve/CVE-2026-43422.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-43422","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-43422"},"summary":{"title":"usb: legacy: ncm: Fix NPE in gncm_bind","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: legacy: ncm: Fix NPE in gncm_bind\n\nCommit 56a512a9b410 (\"usb: gadget: f_ncm: align net_device lifecycle\nwith bind/unbind\") deferred the allocation of the net_device. This\nchange leads to a NULL pointer dereference in the legacy NCM driver as\nit attempts to access the net_device before it's fully instantiated.\n\nStore the provided qmult, host_addr, and dev_addr into the struct\nncm_opts->net_opts during gncm_bind(). These values will be properly\napplied to the net_device when it is allocated and configured later in\nthe binding process by the NCM function driver.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-05-08 15:16:54","updated_at":"2026-05-12 14:10:27"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/fde0634ad9856b3943a2d1a8cc8de174a63ac840","name":"https://git.kernel.org/stable/c/fde0634ad9856b3943a2d1a8cc8de174a63ac840","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/be5738d19bed244ede84da45bc45395bcb1d99e0","name":"https://git.kernel.org/stable/c/be5738d19bed244ede84da45bc45395bcb1d99e0","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/b23e86a3a15803c3dcb24701285f73e65099fdf9","name":"https://git.kernel.org/stable/c/b23e86a3a15803c3dcb24701285f73e65099fdf9","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-43422","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-43422","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected b62076e780a2121903ecf9ffdfb89c64647cb7da be5738d19bed244ede84da45bc45395bcb1d99e0 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 188338c1827842f898761a939669cf345bdf07e2 b23e86a3a15803c3dcb24701285f73e65099fdf9 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 56a512a9b4107079f68701e7d55da8507eb963d9 fde0634ad9856b3943a2d1a8cc8de174a63ac840 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.18.17 6.18.19 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.19.7 6.19.9 semver","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"43422","cve":"CVE-2026-43422","epss":"0.000170000","percentile":"0.041320000","score_date":"2026-05-12","updated_at":"2026-05-13 00:11:53"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/gadget/legacy/ncm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"be5738d19bed244ede84da45bc45395bcb1d99e0","status":"affected","version":"b62076e780a2121903ecf9ffdfb89c64647cb7da","versionType":"git"},{"lessThan":"b23e86a3a15803c3dcb24701285f73e65099fdf9","status":"affected","version":"188338c1827842f898761a939669cf345bdf07e2","versionType":"git"},{"lessThan":"fde0634ad9856b3943a2d1a8cc8de174a63ac840","status":"affected","version":"56a512a9b4107079f68701e7d55da8507eb963d9","versionType":"git"}]},{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/gadget/legacy/ncm.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"6.18.19","status":"affected","version":"6.18.17","versionType":"semver"},{"lessThan":"6.19.9","status":"affected","version":"6.19.7","versionType":"semver"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.19","versionStartIncluding":"6.18.17","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.9","versionStartIncluding":"6.19.7","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: legacy: ncm: Fix NPE in gncm_bind\n\nCommit 56a512a9b410 (\"usb: gadget: f_ncm: align net_device lifecycle\nwith bind/unbind\") deferred the allocation of the net_device. This\nchange leads to a NULL pointer dereference in the legacy NCM driver as\nit attempts to access the net_device before it's fully instantiated.\n\nStore the provided qmult, host_addr, and dev_addr into the struct\nncm_opts->net_opts during gncm_bind(). These values will be properly\napplied to the net_device when it is allocated and configured later in\nthe binding process by the NCM function driver."}],"providerMetadata":{"dateUpdated":"2026-05-11T22:24:16.955Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/be5738d19bed244ede84da45bc45395bcb1d99e0"},{"url":"https://git.kernel.org/stable/c/b23e86a3a15803c3dcb24701285f73e65099fdf9"},{"url":"https://git.kernel.org/stable/c/fde0634ad9856b3943a2d1a8cc8de174a63ac840"}],"title":"usb: legacy: ncm: Fix NPE in gncm_bind","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-43422","datePublished":"2026-05-08T14:21:57.031Z","dateReserved":"2026-05-01T14:12:56.008Z","dateUpdated":"2026-05-11T22:24:16.955Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-05-08 15:16:54","lastModifiedDate":"2026-05-12 14:10:27","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"43422","Ordinal":"1","Title":"usb: legacy: ncm: Fix NPE in gncm_bind","CVE":"CVE-2026-43422","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"43422","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nusb: legacy: ncm: Fix NPE in gncm_bind\n\nCommit 56a512a9b410 (\"usb: gadget: f_ncm: align net_device lifecycle\nwith bind/unbind\") deferred the allocation of the net_device. This\nchange leads to a NULL pointer dereference in the legacy NCM driver as\nit attempts to access the net_device before it's fully instantiated.\n\nStore the provided qmult, host_addr, and dev_addr into the struct\nncm_opts->net_opts during gncm_bind(). These values will be properly\napplied to the net_device when it is allocated and configured later in\nthe binding process by the NCM function driver.","Type":"Description","Title":"usb: legacy: ncm: Fix NPE in gncm_bind"}]}}}